Mechanic doesn't recommend FW-16
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Junior User
Joined: Jan 2016
Posts: 73
Likes: 0
From: Tulsa, Oklahoma
Mechanic doesn't recommend FW-16
I had a local diesel shop in Tulsa change my new to me F350's oil last week and asked him to check the coolent to see if it contained enough FW-16. He said they didn't recommend adding it as the new coolent pretty much prevents cavitation and furthermore he had never seen an issue caused by cavitation. Is this accurate or do we still need to use an additive to prevent possible engine damage caused by cavitation?
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Hotshot
Joined: Dec 2006
Posts: 14,069
Likes: 17
From: Melbourne, Ky
That would depend on what kind of Anti-freeze is in it now. There are diesel rated long life types of anti-freeze that shouldn't need any additives to them. But, a simple dip with a testing strip and about 30 seconds should tell you what you need to know. Most any parts store should carry the test strips.
Postmaster
Joined: Mar 2004
Posts: 3,897
Likes: 9
This is the hats part. Most shops just say they know 7.3's
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Hotshot
Joined: Oct 2003
Posts: 17,799
Likes: 103
From: Ashland City, TN
Most dodge guys dont worry about caviataion. so he's probably a dodge guy.
It's an issue with 7.3's and should be kept an eye on.
It's an issue with 7.3's and should be kept an eye on.
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Tuned
Joined: Jun 2013
Posts: 301
Likes: 13
From: Arkansas
That would depend on what kind of Anti-freeze is in it now. There are diesel rated long life types of anti-freeze that shouldn't need any additives to them. But, a simple dip with a testing strip and about 30 seconds should tell you what you need to know. Most any parts store should carry the test strips.
Fleet Owner
Joined: Aug 2004
Posts: 20,419
Likes: 197
From: AZ
SCA precharged, right below the big letters CHARGE (supplemental coolant additive). After awhile it starts to wear off so get some test strips and you can get some bottles of the stuff from Ford or NAPA.
Tuned
Joined: Jun 2013
Posts: 301
Likes: 13
From: Arkansas
Sounds good to me but where can I get it? Napa? Or gotta go to a fleet supply store?